O Mor daionus yw

  O mor daionus yw,
      gwel'd brodyr yn gytun,
  Mewn hedd yn llon gydfyw,
      a chariad rhwng pob un;
Mae fel yr olew pur i'r pen,
Ac fel gwlith Hermon
        draw o'r nen.

  Ar ben ein Iesu mawr,
      yr enaint gwerthfawr gaed;
  A disgyn hwn i lawr
      yn beraidd hyd y traed:
Dyfera'r olew pur o'r nef,
Ar hyd ymylau'i wisgoedd Ef.

  Un corff, un ysbryd sydd,
      un Arglwydd i'r holl saint,
  Un bedydd, ac un ffydd,
      un gobaith, er bob haint;
Er bod yn fynych yma'n drist,
Cānt cyd-deyrnasu gyda Christ.

  Un ydyw'r eglwys oll,
      tryw'r byd a'r
              nefoedd wen,
  A gwelir hi'n ddigoll,
      ar ddelw Crist ei Phen;
Hardd iawn fydd gwedd
        y dyrfa fawr,
Pan ddelo'r saint o
        lwch y llawr.

gwelir: Un ydyw'r eglwys oll

  O how good it is,
      to see brothers in agreement,
  In peace cheerfully living together,
      with love between every one;
It is like the pure oil to the head,
And like the dew of yonder
        Hermon from the sky.

  On the head of our great Jesus,
      is the precious anointing seen;
  And this flows down
      sweetly as far as the feet:
The pure oil of heaven drips,
As far as the hems of His garments.

  One body, one spirit there is,
      one Lord for all the saints,
  One baptism, and one faith,
      one hope, despite every disease;
Although often being sad here,
They may get to rule together with Christ.

  One is all the church,
      throughout the world and the
              bright heaven,
  And she is to be seen complete,
      in the image of Christ her Head;
Very beautiful shall be the countenance
        of the great throng,
When the saints come from
        the dust of the ground.